acupofcoffee
ajarofjam
apieceofnews
atubeoftoothpate
apiece/sheetofpaper
apiece/sliceofbread
apiece/bitofadvice
abottle/glassofwater
apackofwolves
apairofshoes
aflockofbirds/chickens
agroupofpeople
acircleoffriends
aswarmofants
acollectionofcoins
acrewofsailors
afieetofships
aschoolofwhales
agangofhooligans
astringofpearls
aherdofcattle/elephants